/*
	This file is part of AVRCppLib.

    AVRCppLib is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    AVRCppLib is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with AVRCppLib.  If not, see <http://www.gnu.org/licenses/>.

    Copyright (C) Maxime Lemonnier 2007-2011
 */


bool I2CHardware::readInterruptFlag()
{
	return bitIsSetInRegister(*twcr, TWINT);
}

uint8_t I2CHardware::getStatus()
{
	return *twsr & TW_STATUS_MASK;
}

void I2CHardware::writeDestinationAddress(uint8_t destinationAddress, TransmitDirection currentMode)
{
	*twdr = (destinationAddress << 1) | currentMode;
}

void I2CHardware::command(TransmitAction action)
{
	*twcr = action;
}

char I2CHardware::readByte()
{
	char byte = *twdr;

	return byte;
}

bool I2CHardware::writeByte(char byte)
{
	*twdr = byte;

	return true;
}
